Gun sight



June 5, 1951 A. KLEIN 2,555,888

GUN SIGHT Filed Feb. 26, l946 Fig. 4.

INVENTOR ATTORNEY-5 Patented June 5, 1951 UNITED STATES PATENT OFFICE Claims.

This invention relates to gunsights, particularly to sights for small arms, such as military rifles, carbines and the like, and has for an object to provide a simple and effective means for eliminating a large part of the guess-work in sighting with the sights now generally employed,

and to provide visual means for clearly indicating to the marksman when the sights are properly on the bulls-eye, and also when the gun is 'level and, not turned or inclined at an angle or laterally.

With the foregoing and other objects "in view, I have devised the construction illustrated in the accompanying drawing forming a part of this specification. It is, however, to be understood the invention is not limited to the specific details of construction and arrangement shown, but may :embody various changes and modifications within the scope of the invention.

the target bull's-eye and the front sight omitted,

and Fig. 5 is a rear view of the front sight on an enlarged scale, showing a portion of the barrel in section, and the plane of the view being subs'tantially on line 5-5 Fig. 1.

No attempt has been made to show the details of the rifle, it comprising the usual stock l0, barrel mounting and grip barrel I2, breech mechanism I3, the front sight M adjacent the muzzle of the barrel, and the rear sight l5 which is shown as an upright transverse plate with a peep-opening Hi. This sight of Figs. 2 and 4 shown as a generally rectangular or square plate ll, while in Fig. 3 it is shown as a circular fplate |8, but the invention is the same for both forms and can, of course, be applied with other shaped sights comprising a peep-opening for sighting. Figs. 2 and 3 show how the sights are properly fixed on the target, the bull's-eye of the target being shown at l9. It will be clearly understood that in these figures the various elements are greatly enlarged, as in actual sighting they appear very small to the marksman.

The front sight M has an upright narrow rear face 20 facing toward the rear, and providing a top sighting edge 2|, and as is well known, in properly sighting it on the bull's-eye I9 of the target this top edge 2| of the front sight should be exactly in the center of the peep-opening IS in the rear sight, and be on both the horizontal and vertical center lines or axes of this opening, and the top edge 2| of this front sight, in addition to being on both the vertical and horizontal, center lines or axes, should be on a line with the bottom edge of the bulls-eye I9 of the target, as shown in Figs. 2 and 3. It will be seen that in order to get this position of the sights, a good deal of guess-work and estimation of the relative positions is required of the marksman, and even if the sighting edge 2| is in the center of the peep-opening and on the edge of the bull's-eye, the rifle still might be tipped or turned laterally and not in the vertical plane or level, making the aim inaccurate.

With the present construction, however, these objections are overcome and the marksman can readily determine not only when the sights are properly on the bulls-eye, but whether the rifle is in the vertical plane or levelled, and also whether it is straight on the target with the front sight in the center of the peep sight opening. To secure this, there is provided on the rear surface of the rear sight H or IS a pair of light-colored spots or dots 22 located one on each of the opposite sides of the peep-opening l6 just outside the peep-opening and on the horizontal axis or center line 23 or substantially on this line, and a second pair of similar spots or dots 24, located one above and the other below the peep-opening and on the vertical center line or axis 25. Also, on the rear face 20 of the front sight Hi there is placed a similar light-colored spot or dot 26 immediately under the top sighting edge 2|. These spots or dots are preferably white for maximum daylight visibility, but could be of any light color which contrasts with adjacent or surrounding surfaces for good visibility, and they are also preferably of luminous material so as to b visible at night. The spots or dots 22 could be located a slight distance below the horizontal center line 23, but are preferably located directly on this line, as then their centers would be on the proper level for the sighting edge 2| at the top of the front sight, but, as previously suggested, in actual sighting, the appearance of the various dots is so small that the spots 22 and the front spot 26 would appear to be on a substantially straight horizontal line. The other spots 24 should be located on the vertical center line or axis 25, so that when the spot 26 on the front sight is between and in alignment with them it shows the front sight is in the center of the peep-opening and the rifle will be perfectly aligned, and if this line of spots is vertical, the marksman will know that the rifle is properly levelled or in the vertical plane and is not tipped or turned laterally or at an angle to a horizontal axis.

It will therefore be clear that in sighting, the marksman gets the sights, as shown in Figs. 2 and 3, so that the spot 26 on the front sight I4 is in alignment with the two horizontal spots 22 and also in alignment with the two vertical spots 24. This shows that the front sight is in the center of the peep-opening. Thi also levels up the rifle and assures it is straight, and then with the top sighting edge 2| of the front sight on a line with the bottom edge of the bulls-eye l9 and with the bulls-eye centered over this front sight, he has perfect sight on the bulls-eye, eliminating to a large extent the guess-work required with the ordinary sights, and permitting him to get the sights properly on the bulls-eye much more quickly and more accurately.

Having thus set forth the nature of my invention, I claim:

1. In combination on a gun, a front sight adjacent the muzzle comprising an upright member including an upright rear edge provided with a white dot just below its top edge, a transverse upright rear sight provided with a peep-opening, and the rear surface of the rear sight being provided with a pair of white dots located one on each of the opposite sides of the peep-opening on substantially its horizontal axis, and a pair of similar dots located one each above and below the peep-opening on its vertical axis, said dots on the rear sight being each located immediately adjacent the peep-opening.

2. In combination on a gun, an upright front sight adjacent the muzzle provided with a transverse top sighting edge and a light spot immediately below this top edge facing to the rear, a transverse upright rear sight provided with a peep-opening, and the rear surface of the rear sight being provided with a pair of light spots contrasting with said surface located one on each of the opposite sides of the opening on substantially its horizontal axis and a pair of similar spots located one above and one below the peepopening on its vertical axis, said spots on the rear sight being each located closely adjacent the peep-opening.

3. In combination on a gun, an upright front sight adjacent the muzzle provided with a transverse top sighting edge and a light colored luminous spot immediately below this edge facing toward the rear, a transverse upright rear sight provided with a peep-opening, a pair of light colored luminous spots on the rear surface of the latter sight located one on each of the opposite sides of the peep-opening and on substantially its horizontal axis, and a pair of similar light colored luminous spots on said rear surface located one above and one below the opening and on its vertical axis, said spots on the rear sight being each located in the immediate vicinity of the peep-opening.

4. In combination on a gun, an upright front sight adjacent the muzzle, a transverse upright rear sight provided with a peep-opening for aligning with the front sight, and the rear surface of said rear sight being provided with a pair of circular light spots contrasting with said surface located one on each of the opposite sides of the opening on substantially its horizontal axis and a pair of similar circular spots located one above and one below the peep-opening on its vertical axis, said spots being each located in the immediate vicini y'of said opening. a

5. In combination on a gun, an upright front sight adjacent the muzzle, a transverse upright rear sight provided with a peep-opening for aligning with the front sight, a pair of circular light colored luminous spots on the rear surface of said rear sight located one on each of the opposite sides of said peep-opening and on substantially its horizontal axis, and a pair of similar circular light colored luminous spots on said rear surface located one above and one below the opening on its vertical axis, said spots being each located closely adjacent said opening.

ARTHUR KLEIN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 837,563 Hartmann Dec. 4, 1906 1,222,620 Gaynor et al. Apr. 17, 1917 1,357,095 Kaempfer Oct. 26, 1920 1,358,015 Pen Nov. 9, 1920 2,439,086 Hanley Apr. 6, 1948 

